1023213213 has 96 divisors (see below), whose sum is σ = 1802511360. Its totient is φ = 551992320.

The previous prime is 1023213203. The next prime is 1023213229. The reversal of 1023213213 is 3123123201.

It is not a de Polignac number, because 1023213213 - 2⁴ = 1023213197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023213203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2898445 + ... + 2898797.

It is an arithmetic number, because the mean of its divisors is an integer number (18776160).

Almost surely, 2^1023213213 is an apocalyptic number.

It is an amenable number.

1023213213 is a deficient number, since it is larger than the sum of its proper divisors (779298147).

1023213213 is a wasteful number, since it uses less digits than its factorization.

1023213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1023213213 is about 31987.7040907909. The cubic root of 1023213213 is about 1007.6786254638.

Adding to 1023213213 its reverse (3123123201), we get a palindrome (4146336414).

The spelling of 1023213213 in words is "one billion, twenty-three million, two hundred thirteen thousand, two hundred thirteen".